shithub: mc

ref: 156c048f0239b99b870cf1694c6886e39b85ae09
dir: /test/abi/003_main.myr/

use std

pkg =
        type t1 = struct
                a : uint64
        ;;
        type t2 = struct
                f : uint8
        ;;
        type t3 = struct
                a : uint64
                b : uint64
        ;;
        type t4 = struct
                dummy1 : uint8
                dummy2 : uint8
                dummy3 : uint8
                dummy4 : uint8
                f : uint8
        ;;
;;

const main = {
        var a : t1 = [.a=6]
        var ret : t2

        /* This one succeeds */
        ret = fn_10_myr(a)

        /*
         * This one fails if gencall is too sloppy with the return type.
         * Since t2 is so small, we might have clobbered the value of a.
         */
        ret = fn_10_myr(a)

        if ret.f != 1
                std.exit(1)
        ;;

        /*
         * Now again, for slightly bigger types. This one probably won't
         * happen due to the way the structs are aligned on stack, no
         * matter how sloppy gencall gets.
         */
        var b : t3 = [ .a = 12, .b = 24 ]
        var ret2 : t4
        ret = fn_11_myr(b)
        ret = fn_11_myr(b)

        if ret.f != 1
                std.exit(1)
        ;;

        std.exit(0)
}


const fn_10_myr = { a : t1
        if a.a != 6
                goto bad
        ;;

        -> [.f=1]

:bad
        -> [.f=2]
}

const fn_11_myr = { b : t3
        if b.a != 12 || b.b != 24
                goto bad
        ;;

        -> [.f=1]

:bad
        -> [.f=2]
}